Noise meter AZ8921

Sound Level Meter Type: AZ8921 instrumental data: AZ8921 Sound Level Meter Features: Complies with international standards: IEC651Type2 Frequency range: 31.5Hz-8KHz RS232 signal output instantaneous value measurement method to eliminate background noise measurement Automatic and manual shift record the maximum / minimum, lock reading also be an external power supply, manual / automatic shutdown Technical parameters: Range A ambient noise: 30 ~ 130dB C mechanical noise: 35 ~ 130dB Accuracy ± 1.5dB 0.1dB resolution frequency weighting characteristics A / C measuring gear (6-speed) 30-80dB, 40-90dB, 50-100dB, 60-110dB, 70-120dB, 80-130dB response time to select FAST (fast) / SLOW (slow) frequency range 31.5Hz-8KHz 4 LCD display and bar code display screen Size: 42x64mm signal output AC / DC signal output AC: 0.707VrmsDC: 10mV / dB RS232 standard signal output, the software comes with. Operating / storage temperature and humidity 0 ℃ to50 ℃ <90% RH -10 ℃ to60 ℃ <70% RH Dimensions 80x256x38mm Weight 190g Power supply 9V battery or external 9V power accessories carry together, batteries, instruction manual. Optional RS232 software and even line